Amu Dar'ya River

Japanese: アム･ダリヤ[川]（英語表記）Amu‐Dar’ya

A river in Central Asia. It originates from the glaciers of the Pamir Plateau and flows through Afghanistan and the former Soviet Central Asia (Tajikistan, Turkmenistan, Uzbekistan) before emptying into the Aral Sea. Its total length is 2,620 km, and its drainage area is 465,000 km2. In Greek and Latin sources, it was called Oxus or Oxus, and in Chinese historical sources, Kisui. The middle and lower reaches of the river are desert and have no inflowing rivers, and 25% of the flow is lost due to water withdrawal for irrigation and evaporation. The rapid increase in water withdrawal for irrigation since 1960 has caused a drop in the water level of the Aral Sea.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

中央アジアの川。パミール高原の氷河に源を発してアフガニスタンから旧ソ連邦中央アジア(タジキスタン，トルクメニスタン，ウズベキスタン)を経てアラル海に注ぐ。全長2620km，流域面積46万5000km2。ギリシア語，ラテン語文献では，オクソス，オクスス，中国史料では嬀水（きすい）などとよばれた。中･下流域は砂漠で流入河川はなく，灌漑用取水や蒸発により流量の25％が失われる。とくに1960年以降の灌漑用取水量の急増で，アラル海の水位低下が問題になっている。

出典　株式会社平凡社世界大百科事典第２版について　情報

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